Home / 158,155.02-218,256.66-86,541.30

Finding the Fourth Proportional to 158,155.02, 218,256.66 and 86,541.30

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Solution

The fourth proportional to 158,155.02, 218,256.66 and 86,541.30 is: 119,428.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,155.02 : 218,256.66 = 86,541.30 : x
  2. Step 2: Convert to fraction form
    158,155.02/218,256.66 = 86,541.30/x
  3. Step 3: Cross multiply
    158,155.02x = 218,256.66 × 86,541.30
  4. Step 4: Simplify right side
    158,155.02x = 18,888,215,090.06
  5. Step 5: Solve for x
    x = 18,888,215,090.06/158,155.02
  6. Step 6: Final answer
    x = 119,428.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.